72071368882837 has 4 divisors (see below), whose sum is σ = 72072076697676. Its totient is φ = 72070661068000.

The previous prime is 72071368882823. The next prime is 72071368882883. The reversal of 72071368882837 is 73828886317027.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18827042492196 + 53244326390641 = 4339014^2 + 7296871^2 .

It is a cyclic number.

It is not a de Polignac number, because 72071368882837 - 2²³ = 72071360494229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72071368882817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353754664 + ... + 353958337.

It is an arithmetic number, because the mean of its divisors is an integer number (18018019174419).

Almost surely, 2^{72071368882837} is an apocalyptic number.

It is an amenable number.

72071368882837 is a deficient number, since it is larger than the sum of its proper divisors (707814839).

72071368882837 is a wasteful number, since it uses less digits than its factorization.

72071368882837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707814838.

The product of its (nonzero) digits is 303464448, while the sum is 70.

The spelling of 72071368882837 in words is "seventy-two trillion, seventy-one billion, three hundred sixty-eight million, eight hundred eighty-two thousand, eight hundred thirty-seven".